Revert "views: Move widget/ directory to ui/views." properly.

views/widget/widget_delegate.h

+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef VIEWS_WIDGET_WIDGET_DELEGATE_H_
+#define VIEWS_WIDGET_WIDGET_DELEGATE_H_
+#pragma once
+
+#include <string>
+
+#include "base/memory/scoped_ptr.h"
+#include "ui/base/accessibility/accessibility_types.h"
+#include "ui/base/ui_base_types.h"
+#include "views/view.h"
+
+class SkBitmap;
+
+namespace gfx {
+class Rect;
+}
+
+namespace views {
+class BubbleDelegateView;
+class ClientView;
+class DialogDelegate;
+class NonClientFrameView;
+class View;
+class Widget;
+
+// WidgetDelegate interface
+// Handles events on Widgets in context-specific ways.
+class VIEWS_EXPORT WidgetDelegate {
+ public:
+  WidgetDelegate();
+
+  // Called whenever the widget's position changes.
+  virtual void OnWidgetMove();
+
+  // Called with the display changes (color depth or resolution).
+  virtual void OnDisplayChanged();
+
+  // Called when the work area (the desktop area minus task bars,
+  // menu bars, etc.) changes in size.
+  virtual void OnWorkAreaChanged();
+
+  // Returns the view that should have the focus when the widget is shown.  If
+  // NULL no view is focused.
+  virtual View* GetInitiallyFocusedView();
+
+  // Moved from WindowDelegate: ------------------------------------------------
+  // TODO(beng): sort
+
+  virtual BubbleDelegateView* AsBubbleDelegate();
+  virtual DialogDelegate* AsDialogDelegate();
+
+  // Returns true if the window can ever be resized.
+  virtual bool CanResize() const;
+
+  // Returns true if the window can ever be maximized.
+  virtual bool CanMaximize() const;
+
+  // Returns true if the window can be activated.
+  virtual bool CanActivate() const;
+
+  // Returns true if the dialog should be displayed modally to the window that
+  // opened it. Only windows with WindowType == DIALOG can be modal.
+  virtual bool IsModal() const;
+
+  virtual ui::AccessibilityTypes::Role GetAccessibleWindowRole() const;
+
+  virtual ui::AccessibilityTypes::State GetAccessibleWindowState() const;
+
+  // Returns the title to be read with screen readers.
+  virtual string16 GetAccessibleWindowTitle() const;
+
+  // Returns the text to be displayed in the window title.
+  virtual string16 GetWindowTitle() const;
+
+  // Returns true if the window should show a title in the title bar.
+  virtual bool ShouldShowWindowTitle() const;
+
+  // Returns true if the window's client view wants a client edge.
+  virtual bool ShouldShowClientEdge() const;
+
+  // Returns the app icon for the window. On Windows, this is the ICON_BIG used
+  // in Alt-Tab list and Win7's taskbar.
+  virtual SkBitmap GetWindowAppIcon();
+
+  // Returns the icon to be displayed in the window.
+  virtual SkBitmap GetWindowIcon();
+
+  // Returns true if a window icon should be shown.
+  virtual bool ShouldShowWindowIcon() const;
+
+  // Execute a command in the window's controller. Returns true if the command
+  // was handled, false if it was not.
+  virtual bool ExecuteWindowsCommand(int command_id);
+
+  // Returns the window's name identifier. Used to identify this window for
+  // state restoration.
+  virtual std::string GetWindowName() const;
+
+  // Saves the window's bounds and "show" state. By default this uses the
+  // process' local state keyed by window name (See GetWindowName above). This
+  // behavior can be overridden to provide additional functionality.
+  virtual void SaveWindowPlacement(const gfx::Rect& bounds,
+                                   ui::WindowShowState show_state);
+
+  // Retrieves the window's bounds and "show" states.
+  // This behavior can be overridden to provide additional functionality.
+  virtual bool GetSavedWindowPlacement(gfx::Rect* bounds,
+                                       ui::WindowShowState* show_state) const;
+
+  // Returns true if the window's size should be restored. If this is false,
+  // only the window's origin is restored and the window is given its
+  // preferred size.
+  // Default is true.
+  virtual bool ShouldRestoreWindowSize() const;
+
+  // Called when the window closes. The delegate MUST NOT delete itself during
+  // this call, since it can be called afterwards. See DeleteDelegate().
+  virtual void WindowClosing() {}
+
+  // Called when the window is destroyed. No events must be sent or received
+  // after this point. The delegate can use this opportunity to delete itself at
+  // this time if necessary.
+  virtual void DeleteDelegate() {}
+
+  // Called when the user begins/ends to change the bounds of the window.
+  virtual void OnWindowBeginUserBoundsChange() {}
+  virtual void OnWindowEndUserBoundsChange() {}
+
+  // Returns the Widget associated with this delegate.
+  virtual Widget* GetWidget() = 0;
+  virtual const Widget* GetWidget() const = 0;
+
+  // Returns the View that is contained within this Widget.
+  virtual View* GetContentsView();
+
+  // Called by the Widget to create the Client View used to host the contents
+  // of the widget.
+  virtual ClientView* CreateClientView(Widget* widget);
+
+  // Called by the Widget to create the NonClient Frame View for this widget.
+  // Return NULL to use the default one.
+  virtual NonClientFrameView* CreateNonClientFrameView();
+
+  // Returns true if the window can be notified with the work area change.
+  // Otherwise, the work area change for the top window will be processed by
+  // the default window manager. In some cases, like panel, we would like to
+  // manage the positions by ourselves.
+  virtual bool WillProcessWorkAreaChange() const;
+
+ protected:
+  virtual ~WidgetDelegate() {}
+
+ private:
+  View* default_contents_view_;
+
+  DISALLOW_COPY_AND_ASSIGN(WidgetDelegate);
+};
+
+// A WidgetDelegate implementation that is-a View. Used to override GetWidget()
+// to call View's GetWidget() for the common case where a WidgetDelegate
+// implementation is-a View.
+class VIEWS_EXPORT WidgetDelegateView : public WidgetDelegate, public View {
+ public:
+  WidgetDelegateView();
+  virtual ~WidgetDelegateView();
+
+  // Overridden from WidgetDelegate:
+  virtual Widget* GetWidget() OVERRIDE;
+  virtual const Widget* GetWidget() const OVERRIDE;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(WidgetDelegateView);
+};
+
+}  // namespace views
+
+#endif  // VIEWS_WIDGET_WIDGET_DELEGATE_H_